Identification of Influencing Factors on CO2 Emission of Bridge Projects in Taiwan

2013 ◽  
Vol 405-408 ◽  
pp. 3482-3485
Author(s):  
Rong Yau Huang ◽  
Tsung Yi Tsai ◽  
Chao Hsiu Chen
Keyword(s):  
Influencing Factors ◽  
Construction Projects ◽  
Greenhouse Gas Mitigation ◽  
Bridge Construction ◽  
Global Issues ◽  
Public Projects ◽  
Construction Methods ◽  
Lower Structure ◽  
The Government ◽  
Save Energy

Greenhouse effect and greenhouse gas mitigation practices are becoming global issues in recent years. The government in Taiwan has also developed policy to reduce CO2 emission and save energy in construction of public projects. The objective of this research is to identify the influencing factors on the CO2 emission of bridge construction projects in Taiwan. Examples of those factors are the type of superstructure, the type of lower structure, the construction methods, the location of the project, and so on. The rules of Carbon footprint are used to calculate the CO2 emission of around 31 bridge construction projects in Taiwan. Results of the calculation of these case projects are then compared to each other for analysis to identify the influencing factors on the CO2 emission of bridge projects in Taiwan. Public owners and designers can refer to those identified factors for constructing bridges with lower CO2 emission. The goal of reducing CO2 emission in construction can be facilitated.

scholarly journals Techno-Economic Analysis of Green Construction Regulations Plus Survey for Prototype Implementation in Karachi

2021 ◽  
Vol 64 (2) ◽  
pp. 161-172
Author(s):  
Muhammad Imran Majid ◽  
Muhammad Ibrahim Khan
Keyword(s):  
Construction Projects ◽  
Building Materials ◽  
Green Building ◽  
Green Buildings ◽  
Indoor Environmental Quality ◽  
Major Barrier ◽  
Green Construction ◽  
Construction Methods ◽  
Local Construction ◽  
The Government

  Conventional buildings consume large amounts of energy and are the source of greenhouse gas emissions contributing to climate change. The shortage of green buildings in Pakistan have been said to be due to shortage of knowledge of the benefits of essential green building materials and the absence of  a regulatory framework. The study is qualitative and quantitative and is divided into two parts. This review paper focuses on awareness in the Pakistan's local construction market concerning green buildings through a survey questionnaire. Data collection procedure consists of 60 questionnaires related to green building construction awareness and priorities within Karachi's construction sector. Also, a focus group and personal interviews conducted with at least 5 professionals working in local construction projects are analyzed. The research questions formed from detailed literature review were analyzed and found that energy conservation, environmental/resource conservation and improving indoor environmental quality are major driving factors for green building development. Similarly, there is a lack of knowledge of green construction methods and regulations and lack of support from the government. This has been found as the major barrier in going towards green construction. We recommend policy directions towards this end and elaborate points of concern to the authorities.    

scholarly journals Causes of work accidents and its impact on the road and bridge construction projects

2021 ◽  
Vol 907 (1) ◽  
pp. 012023
Author(s):  
Josefine Ernestine Latupeirissa ◽  
Irwan Lie K Wong ◽  
Herby C P Tiyow
Keyword(s):  
Construction Projects ◽  
Occupational Accidents ◽  
Linear Regression Method ◽  
Bridge Construction ◽  
The Road ◽  
Eastern Indonesia ◽  
Work Accidents ◽  
The Government ◽  
On The Road ◽  
Project Data

Abstract The work accident of road and bridge construction projects in Indonesia is quite severe. Every year there is always news about work accidents in the project. While the construction of roads and bridges, especially in Eastern Indonesia, continues to be carried out actively by the government. This research purpose of analyzing the causes of work accidents and their impact on the project. Data were collected at the research location, institutions related to the construction of projects, totaling 40 respondents. Based on the results of the analysis with a multiple linear regression method, it appears that 31 variables causing occupational accidents and 13 impact variables arising from accidents still occur and are very influential with high probability values. Four recommendations were made to prevent fatal accidents in the construction of roads and bridges, in Eastern Indonesia, to improve safety conditions in the construction industry.

scholarly journals Appropriate Management Scale of Farmland and Regional Differences under Different Objectives in Shaanxi Province, China

Land ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 314
Author(s):  
Qianxi Zhang ◽  
Zehui Chen ◽  
Fei Li
Keyword(s):  
Influencing Factors ◽  
Loess Plateau ◽  
Regional Differences ◽  
Agricultural Development ◽  
Shaanxi Province ◽  
Employment Rate ◽  
Grain Production ◽  
The Loess Plateau ◽  
Surplus Labor ◽  
The Government

Agricultural development is facing two problems: insufficient grain production and low profit of farmers. There is a contradiction between the government’s goal of increasing production and the farmer’s goal of increasing profit. Exploring the appropriate management scale of farmland under different objectives is of great significance to alleviate the conflict of interests between the government and farmers. In this study the Cobb-Douglas production function model was used to measure the appropriate management scale of farmland under different objectives in Shaanxi Province and analyze the regional differences. Under the two objectives, the appropriate management scale of the Loess Plateau was the largest in the three regions, followed by Qinba Mountains and Guanzhong Plain. Farmland area and quality were the main influencing factors for the appropriate management scale of farmland under the goal of maximizing the farmland yield, while the nonagricultural employment rate and farmland transfer rate were the main influencing factors under the goal of maximizing farmers’ profits. It is easy for Shaanxi Province to increase farmers’ profits, but more land needed to be transferred to increase farmland yield. These results suggest that in order to balance the goal of increasing yield and profit, the transfer of rural surplus labor should be promoted, and the nonagricultural employment rate should be improved. In Loess Plateau, restoring the ecological environment and enhancing the farmland quality. In Guanzhong Plain, avoiding urban land encroachment on farmland. In Qinba Mountains, developing farming techniques and moderately increasing the intensity of farmland exploit.

scholarly journals Embodied Carbon as a Material Selection Criterion: Insights from Sri Lankan Construction Sector

2021 ◽  
Vol 13 (4) ◽  
pp. 2202
Author(s):  
Amalka Nawarathna ◽  
Muditha Siriwardana ◽  
Zaid Alwan
Keyword(s):  
Sri Lanka ◽  
Construction Projects ◽  
Material Selection ◽  
Selection Criterion ◽  
Green Building ◽  
Vital Role ◽  
Low Carbon ◽  
Rating Systems ◽  
Embodied Carbon ◽  
The Government

The choice of materials is crucial in responding to the increasing embodied carbon (EC) impacts of buildings. Building professionals involved in material selection for construction projects have a vital role to play in this regard. This paper aimed to explore the extent to which building professionals in Sri Lanka considered EC as a material selection criterion. A questionnaire survey was conducted among a sample of building professionals in Sri Lanka. The results indicated that the consideration of EC as a material selection criterion remained low among key professionals, such as architects, engineers, and sustainability managers, despite their reasonable influencing powers and knowledge of EC. Those respondents who had considered EC as a selection criterion said they had been primarily driven by green building rating systems and previous experience. Those respondents who had not considered EC during material selection commonly reported that they had been prevented from doing so by the lack of regulations and the lack of alternative low carbon materials. Respondents believed that the involvement of actors, such as the government, professional bodies, environmental organizations, activist groups, and the public, may be significant in promoting the greater consideration of EC during material selection.

scholarly journals A Simulation Model of Construction Projects Executed in Random Conditions with the Overlapping Construction Works

2021 ◽  
Vol 13 (11) ◽  
pp. 5795
Author(s):  
Sławomir Biruk ◽  
Łukasz Rzepecki
Keyword(s):  
Simulation Model ◽  
Technological Process ◽  
Construction Projects ◽  
Working Time ◽  
Simulation Studies ◽  
Construction Methods ◽  
The Impact ◽  
Construction Works

Reducing the duration of construction works requires additional organizational measures, such as selecting construction methods that assure a shorter realization time, engaging additional resources, working overtime, or allowing construction works to be performed simultaneously in the same working units. The simultaneous work of crews may affect the quality of works and the efficiency of construction processes. This article presents a simulation model aimed at assessing the impact of the overlap period on the extension of the working time of the crews and the reduction of a repetitive project’s duration in random conditions. The purpose of simulation studies is to provide construction managers with guidelines when deciding on the dates of starting the sequential technological process lines realized by specialized working crews, for sustainable scheduling and organization of construction projects.

scholarly journals Influenza vaccination during pregnancy and influencing factors in Korea: A multicenter questionnaire study of pregnant women and obstetrics and gynecology doctors

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Byung Soo Kang ◽  
San Ha Lee ◽  
Woo Jeng Kim ◽  
Jeong Ha Wie ◽  
In Yang Park ◽  
...  
Keyword(s):  
Influenza Vaccination ◽  
Pregnant Women ◽  
Influencing Factors ◽  
World Health ◽  
Obstetrics And Gynecology ◽  
Health Authorities ◽  
The Government ◽  
Vaccine Information ◽  
Health Organization ◽  
Maternal Influenza

Abstract Background Although the World Health Organization and health authorities in most countries recommend that pregnant women receive inactivated influenza virus vaccines, coverage remains low. This study aimed to investigate (1) the proportion of pregnant women who received an influenza vaccination and influencing factors and (2) the proportion of obstetrics and gynecology (OBGYN) doctors who routinely recommend influenza vaccination to pregnant women and influencing factors. Methods Two separate, anonymized questionnaires were developed for physicians and pregnant and postpartum women and were distributed to multicenters and clinics in South Korea. The proportions of women who received influenza vaccination during pregnancy and OBGYN doctors who routinely recommend the influenza vaccine to pregnant women were analyzed. Independent influencing factors for both maternal influenza vaccination and OBGYN doctors’ routine recommendations to pregnant women were analyzed using log-binomial regression analysis. Results The proportion of self-reported influenza vaccination during pregnancy among 522 women was 63.2%. Pregnancy-related independent factors influencing maternal influenza vaccination were “(ever) received information about influenza vaccination during pregnancy” (OR 8.9, 95% CI 4.17–19.01), “received vaccine information about from OBGYN doctors” (OR 11.44, 95% CI 5.46–24.00), “information obtained from other sources” (OR 4.38, 95% CI 2.01–9.55), and “second/third trimester” (OR 2.41, 95% CI 1.21–4.82).. Among 372 OBGYN doctors, 76.9% routinely recommended vaccination for pregnant women. Independent factors effecting routine recommendation were “working at a private clinic or hospital” (OR 5.33, 95% CI 2.44–11.65), “awareness of KCDC guidelines” (OR 3.11, 95% CI 1.11–8.73), and “awareness of the 2019 national free influenza vaccination program for pregnant women” (OR 4.88, 95% CI 2.34–10.17). OBGYN doctors most commonly chose ‘guidelines proposed by the government or public health (108, 46%) and academic committees (59, 25%), as a factor which expect to affect the future recommendation Conclusion This study showed that providing information about maternal influenza vaccination, especially by OBGYN doctors, is crucial for increasing vaccination coverage in pregnant women. Closer cooperation between the government and OBGYN academic societies to educate OBGYN doctors might enhance routine recommendations.

scholarly journals Risk analysis and strategic planning on bridge construction works at the toll road procurement projects in Central Java Province

2018 ◽  
Vol 49 ◽  
pp. 02020
Author(s):  
Hery Suliantoro ◽  
Nurul Fitriani ◽  
Bagus Hario Setiadji
Keyword(s):  
Avoidance Response ◽  
Construction Projects ◽  
Construction Project ◽  
Weather Forecast ◽  
Development Project ◽  
Response Strategy ◽  
Bridge Construction ◽  
Risk Response ◽  
Toll Road ◽  
The Impact

Risk is a condition caused by uncertainty. Risks will occur on any construction project, including bridge construction projects. Efforts that can be taken to minimize the impact of these risks are to engage in risk management activities. This research was conducted on bridge construction work on toll road procurement project in Pejagan-Pemalang, Pemalang-Batang and Salatiga-Kertasura. The purpose of this research is to analyze the risk of bridge development project in toll road project using Risk Breakdown Structure (RBS) method and then the result as database in discussing risk response strategy. The bridge construction project has 36 risks that are divided into six groups: materials and equipment, design, human resources, finance, management, nature and environmental conditions. Bad weather risks are the higest risk and seasonal risk causing temporary work stoppages. This risk-response strategy is avoidance. Short-term avoidance response strategy is to add shift workers, install tents and add additives in the acceleration of the process of maturation of concrete. The long-term avoidance response strategy is to evaluate and rearrange the work schedule by considering the weather forecast report.

Quality of Design Documentation in the Construction Industry: A Review Using Meta-Synthesis Approach

2021 ◽  
Vol 18 (06) ◽  
Author(s):  
Peter Dodzi Kwasi Agbaxode ◽  
Sitsabo Dlamini ◽  
Ehsan Saghatforoush
Keyword(s):  
Construction Industry ◽  
Influencing Factors ◽  
Construction Projects ◽  
Poor Quality ◽  
Improve Design ◽  
Documentation Quality ◽  
Design Documentation ◽  
Quality Design ◽  
Synthesis Approach

A meta-synthesis approach was used to identify, synthesize, and categorize appropriately factors in the literature that contribute to design documentation quality. The categories include factors on quality attributes, quality indicators, and quality-influencing factors. Findings indicate that the quality of design documentation in practice is unsatisfactory, therefore, there is a need for collaboration between the owner, designers, and end-users to improve design documentation quality. The results offer pragmatic data on design documentation quality in the construction industry between the years 1992 and 2019. However, further research on the significant impacts of poor-quality design documentation on construction projects is recommended.

Bridge bearing solutions that facilitate quick and efficient bearing installation and bridge construction

2019 ◽  
Author(s):  
Simon Hoffmann ◽  
Amit Kutumbale ◽  
Danilo Della Ca'
Keyword(s):  
Load Distribution ◽  
Construction Method ◽  
Construction Process ◽  
Vital Function ◽  
Bridge Construction ◽  
Construction Methods ◽  
Efficient Construction ◽  
Critical Components ◽  
Bridge Bearing ◽  
Segmental Bridge

<p>A bridge’s bearings, arguably its most critical components, perform a vital function throughout the bridge’s service life, but the bearings used can also have a significant impact on the bridge construction process. Suitably designed adjustable bearings are an integral part of the incremental launch method of bridge construction, for instance, which can be a very efficient construction method. Adjustable bearings may also support other bridge construction methods, such as segmental bridge construction, where fixities/freedoms that applied during the construction phase require to be changed before the bridge enters service. Lifting bearings, the height of which can be increased, may enable a lack of precision in the structure to be tolerated, and measuring bearings may enable load distribution during bridge construction to be verified, where this is required by the construction method. Design features of otherwise standard bearings that support quick and high-quality installation can also contribute towards the efficiency of the overall bridge construction process, as can the use of bearing designs which minimize bearing size. Bearing solutions and features that facilitate bearing installation and bridge construction in ways such as these are described.</p>

scholarly journals Economic Growth, Policies and Influencing Factors: The Case of Albania

2016 ◽  
Vol 4 (1) ◽  
pp. 107
Author(s):  
Eleni Vangjeli ◽  
Anila Mancka
Keyword(s):  
Economic Growth ◽  
Monetary Policy ◽  
Fiscal Policy ◽  
Interest Rates ◽  
Empirical Analysis ◽  
Influencing Factors ◽  
Fiscal Policies ◽  
The Government ◽  
High Level ◽  
The Empirical Analysis

Monetary and fiscal policies are two policies that the government could use to keep a high level of growth, with a low inflancion. Fiscal policy has its initial impact on the stock market, while monetary policy in market assets. But, given that the goods and active markets are closely interrelated, both policies, monetary as well as fiscal have impact on the economy, increasing the level of product through the reduction of interest rates. In our paper we will show how functioning monetary and fiscal policies. But also in our paper we will analyze the different factors which have affected the economic growth of the country. The focus of our study is the graphical and empirical analysis of economic growth, policies and influencing factors. For the empirical analysis we have used data on the economic growth in Albania for 1996– 2014.

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